About us

Land Stewardship

Bob and Judy Prosser were recently awarded the 2016 Range Managers of the Year by the Arizona Section Society of Range Management. Judy’s father, Ernest Chilson, received this award in the late 1960s.

The Diablo Trust: A collaborative, grass roots, land-management team

The Diablo Trust was formed in 1993 by the Metzger family, owners of the Flying M Ranch, and the Prosser family, owners of the Bar T Bar Ranch, to create a collaborative process for developing ideas to help protect open spaces and healthy habitats. The Trust is a 501(c)(3) nonprofit organization. Its mission is to sustain healthy land resources and open space through education and active involvement of the broader community in maintaining ranches as long-term, economically viable land stewardship enterprises.

The Trust currently relies on a core group of individuals for operation and research, and without membership fees or dues it relies on contributions to fund their programs.